The Trump administration moved on Thursday to tighten the duration of visas for foreign students, cultural exchange visitors and journalists.

Axar.az reports, citing Reuters, that the new final rule from the ​Department of Homeland Security creates a fixed time period for F visas for international students, J visas that allow ‌visitors on cultural exchange programs to work in the U.S., and I visas for members of the media. Those visas are currently available for the duration of the program or employment in the U.S.

The effective date is 60 days from publication in the federal register, subject to congressional review.

The latest action would create new hurdles for international students, exchange workers and foreign journalists.

Under the ​new regulations, the student and exchange visa periods would be no longer than four years. The visa for journalists - which currently can last ​years - would be up to 240 days or, in the case of Chinese nationals, 90 days.